Scalarized compact objects in a vector-tensor Horndeski gravity

Y. Brihaye, Y. Verbin

Research output: Contribution to journalArticlepeer-review


We have discovered a new type of scalarized charged black holes in a surprisingly simple system: an Einstein-Maxwell-Klein-Gordon field theory where the three fields couple nonminimally through a Horndeski vector-tensor term. In addition to hairy charged black holes, this system exhibits Horndeski-Reissner-Nordstrom solutions and ordinary Reissner-Nordstrom ones which bifurcate to the scalarized solutions. There exist also vector-tensor black hole solutions which possess central curvature singularities although their metric components are finite there, and also solutions with naked singularities producing regular metric components everywhere around them. We analyze the solutions and present their main features.

Original languageEnglish
Article number124021
JournalPhysical Review D
Issue number12
StatePublished - 7 Dec 2020

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